Professional Cast Iron Manhole Cover , Heavy Duty Rectangular Sewer Cover

Professional Cast Iron Manhole Cover , Heavy Duty Rectangular Sewer Cover

IRON MANHOLR COVER

1. Put damage:

This is the biggest characteristic of ductile iron manhole covers, ductile iron manhole covers can be heavy pressure 36T/60T, light can be confined 21T. Even if the load pressure exceeds its limit, ductile iron manhole cover cast iron manhole cover is not as common as broken, but a slight deformation of the car and pedestrians has a certain security.

2. Anti-shock:

only through the mouth of the Manhole set to U-shaped, with a T-type synthetic rubber, U-shaped slot embedded in the contact Manhole covers and the process in order to cushion and reduce the vibration force.

3. Anti-slip:

3mm tread covers convex surface, and thus play a good non-slip effect.

4. Anti-impact:

Manhole covers the contact with the colossal surface, directly on the T-rubber, and dealt with gently, to eliminate noise.

Product information:Manhole covers are manufactured for road construction, natural gas, water supply and drainage, telecommunications. Manhole covers and gratings should be smooth, no blisters, holes, distortion or any other defects. 

Size: 500mm*500mm,600mm*600mm,700mm*700mm,800mm*800mm, 850mm*850mmand so on.Many size can be choose,or according to customer's drawing or requirements.

Material

Ductile Iron GGG500,or according to customers requirement

Designs

EN124 A15, B125, C250, D400, E600 and F900 or As per customers' drawings or samples

Processes:

A) Moulding boards

B) Green sand with hand moulding

Coating

Cold applied black bitumen Or without Coating or as per customers' requirement